UXPin

UXPin is a code-based design and prototyping platform that bridges the gap between design and development by letting teams work with real, production-ready components directly in the design environment. Unlike vector-based tools such as Figma or Sketch, UXPin renders designs using HTML, CSS, and JavaScript under the hood, producing prototypes that behave like actual software rather than clickable mockups.

The platform's flagship capability is Merge technology, which allows designers to import live React, Storybook, Angular, Vue, and npm components into the design canvas. Designers drag and drop fully functional code components — complete with real props, states, and interactions — without writing a single line of code. This means prototypes built with Merge are pixel-perfect representations of the final product because they use the same components developers ship to production.

Beyond Merge, UXPin provides advanced interactive prototyping features that go well beyond simple click-through flows. Designers can create conditional logic (if/then/else), define and manipulate variables, write expressions, connect prototypes to REST APIs for real data, and build multi-state components with complex transitions. These capabilities make UXPin particularly well-suited for prototyping data-heavy enterprise applications like dashboards, forms, and admin panels.

UXPin also includes built-in design system management tools that let organizations create, version, document, and distribute shared component libraries. Teams can enforce consistency across products, track adoption metrics, and maintain a single source of truth for design tokens, patterns, and guidelines. Combined with built-in WCAG accessibility checking, role-based permissions, SSO/SAML support, and integrations with Jira, Slack, GitHub, and other development tools, UXPin positions itself as a comprehensive platform for enterprise product teams that need high-fidelity prototyping tightly coupled with their existing codebase and design system infrastructure.